Table 3.
DTI Association with Clinical Measures
| Acute | Chronic | |||||||
|---|---|---|---|---|---|---|---|---|
| Clinical measures | FA | MD | AD | RD | FA | MD | AD | RD |
| Acute injury severity | ||||||||
| ICU days | −0.359 | 0.429 | 0.227 | 0.470* | 0.315 | 0.132 | 0.344 | −0.110 |
| Hospital days | −0.473* | 0.460* | 0.208 | 0.534* | 0.297 | 0.170 | 0.297 | −0.046 |
| Processing speed | ||||||||
| Trails A | 0.135 | 0.324 | 0.327 | 0.166 | 0.497* | −0.069 | 0.276 | −0.218 |
| Stroop I | −0.031 | 0.034 | −0.019 | 0.025 | 0.482* | −0.188 | 0.127 | −0.321 |
*
p<0.05
DTI, diffusion tensor imaging; FA, fractional anisotropy; MD, mean diffusivity; AD, axial diffusivity; RD, radial diffusivity; ICU, intensive care unit.